/Engine/Plugins/Runtime/GameplayAbilities/Source/GameplayAbilities/Public/GameplayCueManager.h
Given a TargetActor and a CueClass, find an existing instance of the CueNotify Actor that we can reuse
[AGameplayCueNotify_Actor](API\Plugins\GameplayAbilities\AGameplayCueNotify_Actor) * FindExistingCueOnActor ( const [AActor](API\Runtime\Engine\GameFramework\AActor) & TargetActor, const [TSubclassOf](API\Runtime\CoreUObject\Templates\TSubclassOf)< [AGameplayCueNotify_Actor](API\Plugins\GameplayAbilities\AGameplayCueNotify_Actor) > & CueClass, const [FGameplayCueParameters](API\Plugins\GameplayAbilities\FGameplayCueParameters) & Parameters ) const